Microsoft, wisely, doesn’t care much about the e-reader business. The same document obtained by TechCrunch revealing the possibility of an acquisition also suggests the Nook e-reader will be killed off by 2014. Rather, Microsoft wants all the content and publisher relationships that Nook has built up. In other words, Microsoft want to become a retailer of e-books, just like Amazon and Apple.

It makes sense: Whether we’re talking about Apple (iBooks, iTunes, the App store), Amazon (Kindle reader, Amazon Prime, Amazon Appstore), Google (Google Play, which covers it all) or Microsoft, what it takes to play at the highest level of consumer electronics is having not only compelling hardware, but also a compelling marketplace for media and apps, a walled garden into which a company can enfold customers and never let them go. (Microsoft declined to comment for this piece.)

Coda: What does all this mean for Barnes and Noble? There’s a strong case to be made the company will go the way of the now-defunct book retailer Borders.